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December 1997 Circuit Analysis Examples 걼 Hairpin Edge Coupled Filter 걼 Bipolar Amplifier 걼 Statistical Analysis and Design Centering 걼 Frequency Doubler.

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Presentation on theme: "December 1997 Circuit Analysis Examples 걼 Hairpin Edge Coupled Filter 걼 Bipolar Amplifier 걼 Statistical Analysis and Design Centering 걼 Frequency Doubler."— Presentation transcript:

1 December 1997 Circuit Analysis Examples 걼 Hairpin Edge Coupled Filter 걼 Bipolar Amplifier 걼 Statistical Analysis and Design Centering 걼 Frequency Doubler 걼 Distributed Amplifier Intermodulation Analysis 걼 Balanced Mixer Analysis 걼 Oscillator Analysis 걼 Oscillator Phase Noise Analysis

2 December 1997 PCS Hairpin Filter 걼 Microstrip Filter application using the Multiple Coupled Lines (MCPL) feature in Serenade. 걼 Using the Report Editor to pick desired responses. 걼 Optimizing the insertion and return losses. 걼 Smith Chart display of S11 걼 Examination of S21 via Serenade’s Tune function.

3 December 1997 PCS Hairpin Filter 걼 Linear Analysis of a Hairpin Filter designed for the PCS band.

4 December 1997 PCS Hairpin Filter 걼 MCPL element excerpt from online manual.

5 December 1997 PCS Hairpin Filter 걼 Rectangular plot of S11 and S21 show pre- and post-optimization response.

6 December 1997 PCS Hairpin Filter 걼 Linear Report Editor used to pick responses.

7 December 1997 PCS Hairpin Filter 걼 Smith Chart Graph of S11 for the filter.

8 December 1997 PCS Hairpin Filter 걼 Graph of S21 with accumulated tune results.

9 December 1997 Bipolar Amplifier 걼 Single Stage Bipolar Amplifier 걼 Microstrip Substrate 걼 Linear Analysis and Optimization 걼 Frequency Sweep from 1.0 GHz to 5.0 GHz 걼 Optimized for Gain and Input Match

10 December 1997 Bipolar Amplifier 걼 Linear Analysis and Optimization

11 December 1997 Bipolar Amplifier 걼 Device Library containing over 50,000 parts 걼 S-Parameter Data Sets 걼 Equivalent Circuit Models 걼 Nonlinear Device Models

12 December 1997 Bipolar Amplifier 걼 Rectangular graph of Input Match, Gain, Output Match and Noise Figure

13 December 1997 Bipolar Amplifier 걼 Both Linear and Nonlinear optimization 걼 Random, Gradient and Mini-Max optimizers 걼 Extensive circuit parameters. Ranging from Return Loss and Gain to Phase Noise and Spectral Purity

14 December 1997 Bipolar Amplifier 걼 Final Optimized Results for the Amplifier

15 December 1997 Electronic Smith Tool 걼 Initial Design of Narrowband Amplifiers 걼 Power & Available Gain Circles 걼 Noise & Stability Circles 걼 Bilateral Mapping 걼 Multiple grid sets and Q grids for larger % bandwidth 걼 Initial Design of Oscillators 걼 Constant Reflectance Circles 걼 Impedance Mapping Tool for selection of feedback and resonator networks 걼 Extraction of Matching and Resonator Networks 걼 Lumped and Distributed Elements 걼 Interactive design of cascaded elements

16 December 1997 Amplifier Design 걼 Power Gain, Available Gain, Noise & Stability Circles 걼 Bilateral Mapping 걼 Multiple grid sets 걼 Q grids for larger % bandwidth

17 December 1997 Extraction of Matching and Resonator Networks 걼 Lumped and Distributed Elements 걼 Interactive design of cascaded elements Open Stub Noise Gain Desired Impedance Transmission Line Series Capacitor

18 December 1997 Statistical Analysis/Design Centering 걼 Single Stage Wideband Amplifier 걼 Specific elements include Optimization and Statistical Perturbation 걼 Includes Normal and Uniform Distributions for several elements 걼 Statistical Analysis combines with Optimization to provide Design Centering 걼 Histogram Outputs Available

19 December 1997 Statistical Analysis/Design Centering 걼 Wideband Amplifier

20 December 1997 Statistical Analysis/Design Centering 걼 Amplifier’s S11, S21 and S22

21 December 1997 Statistical Analysis/Design Centering 걼 Histogram of S21 Performance at 500 MHz

22 December 1997 Nonlinear Design and Analysis  Harmonic Balance Engine- Microwave Harmonica  High Dynamic Range (180dB)  Excellent convergence on highly nonlinear problems  Highly Accurate Distributed Elements  Extensive Output Data Available  Analysis and Optimization of Mixer and Oscillator Noise  Accurate Amplifier and Mixer Intermodulation computation  Extensive Nonlinear Device Library

23 December 1997 Frequency Doubler 걼 Single Tone Analysis 걼 Active FET Frequency Doubler 걼 Two Dimensional Sweep 걼 Power Sweep: 0dBm to 10dBm in 1dB steps 걼 Frequency Sweep: 1GHZ to 10GHZ in 0.5GHZ steps 걼 Examination of Analysis Results 걼 Time Domain 걼 Spectral Domain 걼 Sweep Domain (swept power as the X axis) 걼 Device Domain

24 December 1997 Frequency Doubler 걼 FET Frequency Doubler Schematic

25 December 1997 Frequency Doubler 걼 Transducer Gain vs. Frequency and Input Power

26 December 1997 Frequency Doubler 걼 Time Domain View of Input and Output Voltages

27 December 1997 Frequency Doubler 걼 Spectrum Plot of Output Power in dBm

28 December 1997 Frequency Doubler 걼 DC IV Curves and AC Load Line for the FET 걼 Family of curves: one load line for each step of the pwr sweep

29 December 1997 Distributed Amplifier Intermodulation Analysis 걼 Two Tone Analysis of a Distributed Amplifier 걼 Tone 1= 4.0GHZ 걼 Tone 2=4.2GHZ 걼 Dual Power Sweep: 0dBm to 20dBm in 1dB steps 걼 Device Library FET Entries 걼 Examination of Intermodulation Products 걼 Determination of third order intercept point.

30 December 1997 Distributed Amplifier Intermodulation Analysis 걼 Three Stage 4 GHz Distributed Amplifier

31 December 1997 Distributed Amplifier Intermodulation Analysis 걼 Fundamental and Third Order Product Compression Curves

32 December 1997 Distributed Amplifier Intermodulation Analysis 걼 Output Voltage vs Time & Input Power

33 December 1997 Distributed Amplifier Intermodulation Analysis 걼 Spectral Domain Graph of Output Power

34 December 1997 Balanced Mixer Analysis 걼 Two Tone Analysis of a Differential Mixer 걼 Tone 1 (LO) = 149.3MHZ 걼 Tone 2 (RF) =160.0MHZ 걼 Swept LO Voltage 걼 Examination of Mixer Noise Figure 걼 Examination of Mixer properties vs. swept LO voltage 걼 Serenade’s General Support for Nonlinear Noise Analysis : 걼 Single Tone systems 걼 Multi-Tone Systems 걼 Oscillator Phase Noise

35 December 1997 Balanced Mixer Analysis 걼 Differential BJT Mixer Operating Near 150 MHz

36 December 1997 Balanced Mixer Analysis 걼 Mixer Transducer Gain vs. LO Voltage

37 December 1997 Balanced Mixer Analysis 걼 Mixer Output Voltage vs. 2 Time Cycles

38 December 1997 Balanced Mixer Analysis 걼 Mixer Output Voltage vs. 20 Time Cycles

39 December 1997 Balanced Mixer Analysis 걼 Noise Figure and Conversion Gain vs Swept LO Voltage

40 December 1997 Oscillator Analysis 걼 Design and Analysis of a 5GHZ Mesfet Oscillator 걼 Oscillator Design Utility automatically determines resonant frequency 걼 Oscillator Phase Noise Computation 걼 Serenade provides Phase Noise Optimization 걼 Examination of Oscillator properties vs. swept DC control voltage

41 December 1997 Oscillator Phase Noise Analysis 걼 5 GHz FET Oscillator

42 December 1997 Oscillator Analysis 걼 Oscillator Design Utility

43 December 1997 Oscillator Analysis 걼 Spectrum Plot of Oscillator Output Power

44 December 1997 Oscillator Analysis 걼 FET DC IV Curves and AC Load Line

45 December 1997 Oscillator Phase Noise Analysis 걼 Oscillator Phase Noise in dBc/Hz 걼 Family of Curves: one phase noise trace for each step in the control voltage sweep

46 December 1997 Oscillator Phase Noise Analysis


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